Unfortunately I have no background information
concerning these two film badges.

The badge on the left has no markings whatsoever.
It contains a single packet of DuPont film the bottom half of which is
sandwiched in a cadmium filter to correct for the film's over-response to
low energy photons. The back of the badge, not shown, has a simple
alligator clip.

The badge on the right is made of steel and heat
sealed in a plastic pouch. It too contains a single film packet. The
bottom portion of the holder is thicker than the upper portion, probably
to house a cadmium filter. Stamped across the top of the badge are the
letters: "USAEC NYDO." In the middle of the badge is the
number "0024." USAEC NYDO stands for United States Atomic Energy
Commission, New York Directed Operations. The latter was
subsequently known as the New York Operations Office - it was one of five
regional AEC offices.